[7p-N401-1~16] 13.6 Nanostructures, quantum phenomena, and nano quantum devices

2:45 PM - 3:00 PM JST(5:45 AM - 6:00 AM UTC)

[7p-N401-5] [The 58th Young Scientist Presentation Award Speech] Spatial Mapping of Quantum Dot Ensemble Dynamics Across Multiple Timescales Using Remote Dual-Comb Asynchronous Optical Sampling

〇Gen Asambo^1,2, Riku Shibata^1,2, Yushiro Takahashi^1,2, Kouichi Akahane³, Shinichi Watanabe^1,2, Junko Ishi-Hayase^1,2 (1.Keio Univ., 2.Keio CSRN, 3.NICT)

Keywords:

quantum dot ensemble,optical frequency comb,asynchronous optical sampling

We demonstrated the simultaneous measurement of quantum-dot dynamics (picosecond quantum beats and nanosecond relaxation) at 441 points on a 1 mm² sample in just 30 minutes. Dual-comb asynchronous optical sampling (ASOPS) enabled this rapid measurement, which would otherwise require more than 12 days using a conventional mechanical delay line.